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Proxmox VE vs Xen Project: catalog facts
Proxmox VE	Xen Project
Freemium Free to download and use under the AGPLv3. Paid subscriptions add the enterprise…	Free Free and open source, developed under the Linux Foundation.
Linux, Self-hosted	Self-hosted
One web interface for KVM virtual machines and LXC containers on the same host Backup, restore and high-availability clustering included rather than sold separately	Type-1 hypervisor with strong isolation between guests Used in servers, embedded and safety-critical systems
Dedicated hardware: it is the operating system, not an app you run on your desktop Without a subscription you use the no-subscription repository and see a reminder at each login	Installed on bare metal, so setup is more involved than desktop VM apps Aimed at infrastructure builders rather than casual users
Operating system, Self-hosted	Downloadable app
Open source	Open source
License: AGPL-3.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.